Onipan! Season 1 Episode 58 A Legendary Battle! Onikko Forever! Part 3 ( Air Date 2022-06-29 ) Genre Animation, Comedy, Sci-Fi & Fantasy category. Overview "Over the centuries, oni (AKA demons of Japanese folklore) got a pretty bad reputation. Now it’s up to three plucky oni kids — sunny Tsutsuji, cool Tsuyukusa and boisterous Himawari — to improve human-oni relations through love, friendship and superpowered underpants!".